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## org.apache.tools.ant.taskdefs
Class SignJar

    java.lang.Object
      org.apache.tools.ant.ProjectComponent
          org.apache.tools.ant.Task
              org.apache.tools.ant.taskdefs.SignJar

public class SignJar
extends Task

Signs jar or zip files with the javasign command line tool. The tool detailed dependency checking: files are only signed if they are not signed. The `signjar` attribute can point to the file to generate; if this file exists then its modification date is used as a cue as to whether to resign any JAR file.
Note: Requires Java 1.2 or later.

Since:
  Ant 1.1
Author:
  Peter Donald donaldp@apache.org, Nick Fortescue nick@ox.compsoc.net

Field Summary
`protected java.lang.String` | `alias` The alias of signer.
`protected java.util.Vector` | `filesets` the filesets of the jars to sign
`protected boolean` | `internalsf`
`protected java.io.File` | `jar` The name of the jar file.
`protected java.lang.String` | `keypass`
`protected boolean` | `lazy` Whether to assume a jar which has an appropriate .SF file in is already signed.
`protected boolean` | `sectionsonly`
`protected java.lang.String` | `sigfile`
`protected java.io.File` | `signedjar`
`protected java.lang.String` | `storepass`
`protected java.lang.String` | `storetype`
`protected boolean` | `verbose`

Fields inherited from class org.apache.tools.ant.Task
`description, location, target, taskName, taskType, wrapper`

Fields inherited from class org.apache.tools.ant.ProjectComponent
`project`

Constructor Summary
`SignJar()`

Method Summary
`void` | `addFileset(FileSet set)` Adds a set of files to sign
`void` | `execute()` sign the jar(s)
`protected boolean` | `isSigned(java.io.File file)`
`protected boolean` | `isUpToDate(java.io.File jarFile, java.io.File signedjarFile)`
`void` | `setAlias(java.lang.String alias)` the alias to sign under; required
`void` | `setInternalsf(boolean internalsf)` Flag to include the .SF file inside the signature; optional; default false
`void` | `setJar(java.io.File jar)` the jar file to sign; required
`void` | `setKeypass(java.lang.String keypass)` password for private key (if different); optional
`void` | `setKeystore(java.lang.String keystore)` keystore location; required
`void` | `setLazy(boolean lazy)` flag to control whether the presence of a signature file means a JAR is signed; optional, default false
`void` | `setMaxmemory(java.lang.String max)` Set the maximum memory to be used by the jarsigner process
`void` | `setSectionsonly(boolean sectionsonly)` flag to compute hash of entire manifest; optional, default false
`void` | `setSigfile(java.lang.String sigfile)` name of .SF/.DSA file; optional
`void` | `setSignedjar(java.io.File signedjar)` name of signed JAR file; optional
`void` | `setStorepass(java.lang.String storepass)` password for keystore integrity; required
`void` | `setStoretype(java.lang.String storetype)` keystore type; optional
`void` | `setVerbose(boolean verbose)` Enable verbose output when signing ; optional: default false

Methods inherited from class org.apache.tools.ant.Task
`getDescription, getLocation, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, handleErrorFlush, handleErrorOutput, handleFlush, handleOutput, init, isInvalid, log, log, maybeConfigure, perform, setDescription, setLocation, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName`

Methods inherited from class org.apache.tools.ant.ProjectComponent
`getProject, setProject`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### jar

    protected java.io.File jar

  The name of the jar file.

### alias

    protected java.lang.String alias

  The alias of signer.

### storepass

    protected java.lang.String storepass

### storetype

    protected java.lang.String storetype

### keypass

    protected java.lang.String keypass

### sigfile

    protected java.lang.String sigfile

### signedjar

    protected java.io.File signedjar

### verbose

    protected boolean verbose

### internalsf

    protected boolean internalsf

### sectionsonly

    protected boolean sectionsonly

### filesets

    protected java.util.Vector filesets

  the filesets of the jars to sign

### lazy

    protected boolean lazy

  Whether to assume a jar which has an appropriate .SF file in is already signed.

Constructor Detail

### SignJar

    public SignJar()

Method Detail

### setMaxmemory

    public void setMaxmemory(java.lang.String max)

  Set the maximum memory to be used by the jarsigner process

  Parameters:
    `max` - a string indicating the maximum memory according to the JVM conventions (e.g. 128m is 128 Megabytes)

### setJar

    public void setJar(java.io.File jar)

  the jar file to sign; required

### setAlias

    public void setAlias(java.lang.String alias)

  the alias to sign under; required

### setKeystore

    public void setKeystore(java.lang.String keystore)

  keystore location; required

### setStorepass

    public void setStorepass(java.lang.String storepass)

  password for keystore integrity; required

### setStoretype

    public void setStoretype(java.lang.String storetype)

  keystore type; optional

### setKeypass

    public void setKeypass(java.lang.String keypass)

  password for private key (if different); optional

### setSigfile

    public void setSigfile(java.lang.String sigfile)

  name of .SF/.DSA file; optional

### setSignedjar

    public void setSignedjar(java.io.File signedjar)

  name of signed JAR file; optional

### setVerbose

    public void setVerbose(boolean verbose)

  Enable verbose output when signing ; optional: default false

### setInternalsf

    public void setInternalsf(boolean internalsf)

  Flag to include the .SF file inside the signature; optional; default false

### setSectionsonly

    public void setSectionsonly(boolean sectionsonly)

  flag to compute hash of entire manifest; optional, default false

### setLazy

    public void setLazy(boolean lazy)

  flag to control whether the presence of a signature file means a JAR is signed; optional, default false

### addFileset

    public void addFileset(FileSet set)

  Adds a set of files to sign

  Since:
    Ant 1.4

### execute

    public void execute()
                 throws BuildException

  sign the jar(s)

  Overrides:
    `execute` in class `Task`
  Throws:
    `BuildException` - if something goes wrong with the build

### isUpToDate

    protected boolean isUpToDate(java.io.File jarFile,
                                 java.io.File signedjarFile)

### isSigned

    protected boolean isSigned(java.io.File file)

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